Base | Representation |
---|---|
bin | 1100111011011110010… |
… | …0000010100010110111 |
3 | 210020100010122001021201 |
4 | 3032313210002202313 |
5 | 12114401442311411 |
6 | 250013014553331 |
7 | 22022262302053 |
oct | 3166744024267 |
9 | 706303561251 |
10 | 222123010231 |
11 | 86224715231 |
12 | 37070668847 |
13 | 17c3b7b0285 |
14 | aa72322c63 |
15 | 5ba07a03c1 |
hex | 33b79028b7 |
222123010231 has 8 divisors (see below), whose sum is σ = 234241153280. Its totient is φ = 210047613048.
The previous prime is 222123010177. The next prime is 222123010247. The reversal of 222123010231 is 132010321222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-222123010231 is a prime.
It is a super-2 number, since 2×2221230102312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 222123010199 and 222123010208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222123010261) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10675791 + ... + 10696576.
It is an arithmetic number, because the mean of its divisors is an integer number (29280144160).
Almost surely, 2222123010231 is an apocalyptic number.
222123010231 is a deficient number, since it is larger than the sum of its proper divisors (12118143049).
222123010231 is a wasteful number, since it uses less digits than its factorization.
222123010231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21372933.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 222123010231 its reverse (132010321222), we get a palindrome (354133331453).
The spelling of 222123010231 in words is "two hundred twenty-two billion, one hundred twenty-three million, ten thousand, two hundred thirty-one".
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